Home / 85,564.22-118,119.87-56,931.53

Finding the Fourth Proportional to 85,564.22, 118,119.87 and 56,931.53

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Solution

The fourth proportional to 85,564.22, 118,119.87 and 56,931.53 is: 78,592.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,564.22 : 118,119.87 = 56,931.53 : x
  2. Step 2: Convert to fraction form
    85,564.22/118,119.87 = 56,931.53/x
  3. Step 3: Cross multiply
    85,564.22x = 118,119.87 × 56,931.53
  4. Step 4: Simplify right side
    85,564.22x = 6,724,744,331.90
  5. Step 5: Solve for x
    x = 6,724,744,331.90/85,564.22
  6. Step 6: Final answer
    x = 78,592.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.